glCreateProgram().uniform in python
1
I am trying to port some javascript code with opengl to python. But cannot figure out what I am doing wrong in translating prog.uniform[u] = gl.getUniformLocation(prog, u);
Javascript:
let v = buildShader(vert, gl.VERTEX_SHADER);
let f = buildShader(frag, gl.FRAGMENT_SHADER);
let prog = gl.createProgram();
gl.attachShader(prog, v);
gl.attachShader(prog, f);
gl.linkProgram(prog);
prog.uniform = {};
u = ['model','bounds','frac','aspect'];
_.each(u, function(u){ prog.uniform[u] = gl.getUniformLocation(prog, u); });
Python3/PyOpenGl:
v = self.buildShader(vert, GL_VERTEX_SHADER)
f = self.buildShader(frag, GL_FRAGMENT_SHADER)
prog = glCreateProgram()
glAttachShader(prog, v)
glAttachShader(prog, f)
glLinkProgram(prog)
for u in ['model','bounds','frac','aspect']:
loc = glGetUniformLocations(prog,u)
glProgramUniform(prog,loc,u)
python opengl shader pyopengl
asked Nov 24 '18 at 16:46
NardNard
647
add a comment |
1
I am trying to port some javascript code with opengl to python. But cannot figure out what I am doing wrong in translating prog.uniform[u] = gl.getUniformLocation(prog, u);
Javascript:
let v = buildShader(vert, gl.VERTEX_SHADER);
let f = buildShader(frag, gl.FRAGMENT_SHADER);
let prog = gl.createProgram();
gl.attachShader(prog, v);
gl.attachShader(prog, f);
gl.linkProgram(prog);
prog.uniform = {};
u = ['model','bounds','frac','aspect'];
_.each(u, function(u){ prog.uniform[u] = gl.getUniformLocation(prog, u); });
Python3/PyOpenGl:
v = self.buildShader(vert, GL_VERTEX_SHADER)
f = self.buildShader(frag, GL_FRAGMENT_SHADER)
prog = glCreateProgram()
glAttachShader(prog, v)
glAttachShader(prog, f)
glLinkProgram(prog)
for u in ['model','bounds','frac','aspect']:
loc = glGetUniformLocations(prog,u)
glProgramUniform(prog,loc,u)
python opengl shader pyopengl
asked Nov 24 '18 at 16:46
NardNard
647
add a comment |
1
1
1
I am trying to port some javascript code with opengl to python. But cannot figure out what I am doing wrong in translating prog.uniform[u] = gl.getUniformLocation(prog, u);
Javascript:
let v = buildShader(vert, gl.VERTEX_SHADER);
let f = buildShader(frag, gl.FRAGMENT_SHADER);
let prog = gl.createProgram();
gl.attachShader(prog, v);
gl.attachShader(prog, f);
gl.linkProgram(prog);
prog.uniform = {};
u = ['model','bounds','frac','aspect'];
_.each(u, function(u){ prog.uniform[u] = gl.getUniformLocation(prog, u); });
Python3/PyOpenGl:
v = self.buildShader(vert, GL_VERTEX_SHADER)
f = self.buildShader(frag, GL_FRAGMENT_SHADER)
prog = glCreateProgram()
glAttachShader(prog, v)
glAttachShader(prog, f)
glLinkProgram(prog)
for u in ['model','bounds','frac','aspect']:
loc = glGetUniformLocations(prog,u)
glProgramUniform(prog,loc,u)
python opengl shader pyopengl
asked Nov 24 '18 at 16:46
NardNard
647
I am trying to port some javascript code with opengl to python. But cannot figure out what I am doing wrong in translating prog.uniform[u] = gl.getUniformLocation(prog, u);
Javascript:
let v = buildShader(vert, gl.VERTEX_SHADER);
let f = buildShader(frag, gl.FRAGMENT_SHADER);
let prog = gl.createProgram();
gl.attachShader(prog, v);
gl.attachShader(prog, f);
gl.linkProgram(prog);
prog.uniform = {};
u = ['model','bounds','frac','aspect'];
_.each(u, function(u){ prog.uniform[u] = gl.getUniformLocation(prog, u); });
Python3/PyOpenGl:
v = self.buildShader(vert, GL_VERTEX_SHADER)
f = self.buildShader(frag, GL_FRAGMENT_SHADER)
prog = glCreateProgram()
glAttachShader(prog, v)
glAttachShader(prog, f)
glLinkProgram(prog)
for u in ['model','bounds','frac','aspect']:
loc = glGetUniformLocations(prog,u)
glProgramUniform(prog,loc,u)
python opengl shader pyopengl
python opengl shader pyopengl
asked Nov 24 '18 at 16:46
NardNard
647
asked Nov 24 '18 at 16:46
NardNard
647
asked Nov 24 '18 at 16:46
NardNard
647
asked Nov 24 '18 at 16:46
NardNard
647
asked Nov 24 '18 at 16:46
NardNard
647
647
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
3
glProgramUniform assigns a value to a uniform, where the 3rd paramter is the value.
glProgramUniform(prog,loc,u) makes not any sense, when u is string which is the name name of the uniform.
You have to create a dictionary which contains the locations of a uniform for each name:
uniform = {}
for u in ['model','bounds','frac','aspect']:
uniform[u] = glGetUniformLocation(prog, u)
or simply
uniform = { u : glGetUniformLocation(prog, u) for u in ['model','bounds','frac','aspect'] }
answered Nov 24 '18 at 16:58
Rabbid76Rabbid76
38.2k123249
Thx, how to port theprog.uniform[u]=part to python3?
– Nard
Nov 24 '18 at 17:55
1
@Nard No way, because in pythonprogis t name of the shader program object, which is just a number. You have to create a tuple(prog, uniform).
– Rabbid76
Nov 24 '18 at 17:58
Stupid question probably, but then how do I pass theuniform-variable to opengl or is this not what is happening in the js-codeprog.uniform[u] =?
– Nard
Nov 24 '18 at 18:05
1
@Nard Noprog.uniform[u]doesn't assign anything to uniform variable on the GPU in WebGL (not OpenGL). This is done bygl.Uniform*
– Rabbid76
Nov 24 '18 at 18:32
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
3
glProgramUniform assigns a value to a uniform, where the 3rd paramter is the value.
glProgramUniform(prog,loc,u) makes not any sense, when u is string which is the name name of the uniform.
You have to create a dictionary which contains the locations of a uniform for each name:
uniform = {}
for u in ['model','bounds','frac','aspect']:
uniform[u] = glGetUniformLocation(prog, u)
or simply
uniform = { u : glGetUniformLocation(prog, u) for u in ['model','bounds','frac','aspect'] }
answered Nov 24 '18 at 16:58
Rabbid76Rabbid76
38.2k123249
Thx, how to port theprog.uniform[u]=part to python3?
– Nard
Nov 24 '18 at 17:55
1
@Nard No way, because in pythonprogis t name of the shader program object, which is just a number. You have to create a tuple(prog, uniform).
– Rabbid76
Nov 24 '18 at 17:58
Stupid question probably, but then how do I pass theuniform-variable to opengl or is this not what is happening in the js-codeprog.uniform[u] =?
– Nard
Nov 24 '18 at 18:05
1
@Nard Noprog.uniform[u]doesn't assign anything to uniform variable on the GPU in WebGL (not OpenGL). This is done bygl.Uniform*
– Rabbid76
Nov 24 '18 at 18:32
add a comment |
3
glProgramUniform assigns a value to a uniform, where the 3rd paramter is the value.
glProgramUniform(prog,loc,u) makes not any sense, when u is string which is the name name of the uniform.
You have to create a dictionary which contains the locations of a uniform for each name:
uniform = {}
for u in ['model','bounds','frac','aspect']:
uniform[u] = glGetUniformLocation(prog, u)
or simply
uniform = { u : glGetUniformLocation(prog, u) for u in ['model','bounds','frac','aspect'] }
answered Nov 24 '18 at 16:58
Rabbid76Rabbid76
38.2k123249
Thx, how to port theprog.uniform[u]=part to python3?
– Nard
Nov 24 '18 at 17:55
1
@Nard No way, because in pythonprogis t name of the shader program object, which is just a number. You have to create a tuple(prog, uniform).
– Rabbid76
Nov 24 '18 at 17:58
Stupid question probably, but then how do I pass theuniform-variable to opengl or is this not what is happening in the js-codeprog.uniform[u] =?
– Nard
Nov 24 '18 at 18:05
1
@Nard Noprog.uniform[u]doesn't assign anything to uniform variable on the GPU in WebGL (not OpenGL). This is done bygl.Uniform*
– Rabbid76
Nov 24 '18 at 18:32
add a comment |
3
3
3
glProgramUniform assigns a value to a uniform, where the 3rd paramter is the value.
glProgramUniform(prog,loc,u) makes not any sense, when u is string which is the name name of the uniform.
You have to create a dictionary which contains the locations of a uniform for each name:
uniform = {}
for u in ['model','bounds','frac','aspect']:
uniform[u] = glGetUniformLocation(prog, u)
or simply
uniform = { u : glGetUniformLocation(prog, u) for u in ['model','bounds','frac','aspect'] }
answered Nov 24 '18 at 16:58
Rabbid76Rabbid76
38.2k123249
glProgramUniform assigns a value to a uniform, where the 3rd paramter is the value.
glProgramUniform(prog,loc,u) makes not any sense, when u is string which is the name name of the uniform.
You have to create a dictionary which contains the locations of a uniform for each name:
uniform = {}
for u in ['model','bounds','frac','aspect']:
uniform[u] = glGetUniformLocation(prog, u)
or simply
uniform = { u : glGetUniformLocation(prog, u) for u in ['model','bounds','frac','aspect'] }
answered Nov 24 '18 at 16:58
Rabbid76Rabbid76
38.2k123249
edited Nov 24 '18 at 17:31
answered Nov 24 '18 at 16:58
Rabbid76Rabbid76
38.2k123249
answered Nov 24 '18 at 16:58
Rabbid76Rabbid76
38.2k123249
answered Nov 24 '18 at 16:58
Rabbid76Rabbid76
38.2k123249
38.2k123249
Thx, how to port theprog.uniform[u]=part to python3?
– Nard
Nov 24 '18 at 17:55
1
@Nard No way, because in pythonprogis t name of the shader program object, which is just a number. You have to create a tuple(prog, uniform).
– Rabbid76
Nov 24 '18 at 17:58
Stupid question probably, but then how do I pass theuniform-variable to opengl or is this not what is happening in the js-codeprog.uniform[u] =?
– Nard
Nov 24 '18 at 18:05
1
@Nard Noprog.uniform[u]doesn't assign anything to uniform variable on the GPU in WebGL (not OpenGL). This is done bygl.Uniform*
– Rabbid76
Nov 24 '18 at 18:32
add a comment |
Thx, how to port theprog.uniform[u]=part to python3?
– Nard
Nov 24 '18 at 17:55
1
@Nard No way, because in pythonprogis t name of the shader program object, which is just a number. You have to create a tuple(prog, uniform).
– Rabbid76
Nov 24 '18 at 17:58
Stupid question probably, but then how do I pass theuniform-variable to opengl or is this not what is happening in the js-codeprog.uniform[u] =?
– Nard
Nov 24 '18 at 18:05
1
@Nard Noprog.uniform[u]doesn't assign anything to uniform variable on the GPU in WebGL (not OpenGL). This is done bygl.Uniform*
– Rabbid76
Nov 24 '18 at 18:32
Thx, how to port the
prog.uniform[u]= part to python3?– Nard
Nov 24 '18 at 17:55
Thx, how to port the
prog.uniform[u]= part to python3?– Nard
Nov 24 '18 at 17:55
1
1
@Nard No way, because in python
prog is t name of the shader program object, which is just a number. You have to create a tuple (prog, uniform).– Rabbid76
Nov 24 '18 at 17:58
@Nard No way, because in python
prog is t name of the shader program object, which is just a number. You have to create a tuple (prog, uniform).– Rabbid76
Nov 24 '18 at 17:58
Stupid question probably, but then how do I pass the
uniform-variable to opengl or is this not what is happening in the js-code prog.uniform[u] = ?– Nard
Nov 24 '18 at 18:05
Stupid question probably, but then how do I pass the
uniform-variable to opengl or is this not what is happening in the js-code prog.uniform[u] = ?– Nard
Nov 24 '18 at 18:05
1
1
@Nard No
prog.uniform[u] doesn't assign anything to uniform variable on the GPU in WebGL (not OpenGL). This is done by gl.Uniform*– Rabbid76
Nov 24 '18 at 18:32
@Nard No
prog.uniform[u] doesn't assign anything to uniform variable on the GPU in WebGL (not OpenGL). This is done by gl.Uniform*– Rabbid76
Nov 24 '18 at 18:32
add a comment |
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