diff options
-rw-r--r-- | progs/fpglsl/tex-multi.glsl | 15 | ||||
-rw-r--r-- | progs/fpglsl/tex.glsl | 6 |
2 files changed, 21 insertions, 0 deletions
diff --git a/progs/fpglsl/tex-multi.glsl b/progs/fpglsl/tex-multi.glsl new file mode 100644 index 00000000000..5220b7efaf2 --- /dev/null +++ b/progs/fpglsl/tex-multi.glsl @@ -0,0 +1,15 @@ +// Multi-texture fragment shader +// Brian Paul + +// Composite second texture over first. +// We're assuming the 2nd texture has a meaningful alpha channel. + +uniform sampler2D tex1; +uniform sampler2D tex2; + +void main() +{ + vec4 t1 = texture2D(tex1, gl_Color.xy); + vec4 t2 = texture2D(tex2, gl_Color.yz); + gl_FragColor = mix(t1, t2, t2.w); +} diff --git a/progs/fpglsl/tex.glsl b/progs/fpglsl/tex.glsl new file mode 100644 index 00000000000..4302fabe2d5 --- /dev/null +++ b/progs/fpglsl/tex.glsl @@ -0,0 +1,6 @@ +uniform sampler2D tex1; + +void main() +{ + gl_FragColor = texture2D(tex1, gl_Color.xy); +} |