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flat assembler > Examples and Tutorials > can someone provide a simple opengl shader tutorial

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edfed



Joined: 20 Feb 2006
Posts: 4203
Location: 2018
cool!!! Very Happy

can you post the source code please? i'd like to test it Smile

mikokawasaki wrote:
I got it working now....

im posting for anyone interested...

thank you randall for "pointing" that out...
i learned something new...

heres the working shader code thing im using...


Code:
invoke wglGetProcAddress,"glCreateShader"
mov glCreateShader,rax
invoke wglGetProcAddress,"glCreateProgram"
mov glCreateProgram,rax
invoke wglGetProcAddress,"glShaderSource"
mov glShaderSource,rax
invoke wglGetProcAddress,"glCompileShader"
mov glCompileShader,rax
invoke wglGetProcAddress,"glAttachShader" 
mov glAttachShader,rax
invoke wglGetProcAddress,"glLinkProgram" 
mov glLinkProgram,rax
invoke wglGetProcAddress,"glUseProgram"
mov glUseProgram,rax



invoke glCreateShader, GL_FRAGMENT_SHADER
mov vs,rax
invoke glCreateProgram
mov prg,rax
invoke glShaderSource,vs,1,_fshader_ptr,0
invoke glCompileShader,vs
invoke glAttachShader,prg,vs
invoke glLinkProgram,prg
invoke glUseProgram,prg

...


glGenBuffers dq ?
glCreateShader dq ?
glCreateProgram dq ?
glShaderSource dq ?
glCompileShader dq ?
glAttachShader dq ?
glLinkProgram dq ?
glUseProgram dq ?
vs dq ?
prg dq ?


  align 1
  _fshader db 'void main gl_FragColor = vec40.0,0.0,1.0,1.0;   ',0   
  align 8 
  _fshader_ptr dq _fshader



    

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Post 04 Jun 2013, 20:50
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