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| author | Zou Nan hai <nanhai.zou@intel.com> | 2007-07-04 10:52:35 +0800 |
|---|---|---|
| committer | Zou Nan hai <nanhai.zou@intel.com> | 2007-07-04 10:52:35 +0800 |
| commit | fb9ee9b323bff93973a39560b2bc007aace4bddd (patch) | |
| tree | 05e1e72e8f4d321cde2c48b8518e6d9736c680dd /src/mesa/shader/prog_statevars.c | |
| parent | 285b326c606e9b2f90e4fe177b15b3fa23239b86 (diff) | |
| parent | 7ff4359a3be1278b26950f96ab23014a667af838 (diff) | |
Merge branch 'master' of git+ssh://znh@git.freedesktop.org/git/mesa/mesa into 965-glsl
Diffstat (limited to 'src/mesa/shader/prog_statevars.c')
| -rw-r--r-- | src/mesa/shader/prog_statevars.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c index 953fbb9b9f..d37d7fb9bf 100644 --- a/src/mesa/shader/prog_statevars.c +++ b/src/mesa/shader/prog_statevars.c @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.5.3 + * Version: 7.0 * * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. * @@ -121,17 +121,17 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[], return; case STATE_HALF_VECTOR: { - GLfloat eye_z[] = {0, 0, 1}; - + static const GLfloat eye_z[] = {0, 0, 1}; + GLfloat p[3]; /* Compute infinite half angle vector: - * half-vector = light_position + (0, 0, 1) - * and then normalize. w = 0 - * + * halfVector = normalize(normalize(lightPos) + (0, 0, 1)) * light.EyePosition.w should be 0 for infinite lights. */ - ADD_3V(value, eye_z, ctx->Light.Light[ln].EyePosition); + COPY_3V(p, ctx->Light.Light[ln].EyePosition); + NORMALIZE_3FV(p); + ADD_3V(value, p, eye_z); NORMALIZE_3FV(value); - value[3] = 0; + value[3] = 1.0; } return; case STATE_POSITION_NORMALIZED: @@ -507,6 +507,8 @@ _mesa_program_state_flags(const gl_state_index state[STATE_LENGTH]) switch (state[1]) { case STATE_TEXRECT_SCALE: return _NEW_TEXTURE; + case STATE_FOG_PARAMS_OPTIMIZED: + return _NEW_FOG; default: /* unknown state indexes are silently ignored and * no flag set, since it is handled by the driver. |