okseby/Quake-III-Arena
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix floating point precision loss in renderer [part 2]

Browse source 
Fix floatTime using float precision instead of double using GCC.
Fix R_BindAnimatedImage to be in sync with function table.
Fix vertexDeform bulge, vertexDeform normals, noise wave function
at high level time.

Revert unnecessary float -> double conversions.
This commit is contained in:
Zack Middleton 2017-08-02 23:29:46 -05:00
parent 30fdd88c9f
commit 59b1262b82
12 changed files with 62 additions and 69 deletions
Download patch file Download diff file Expand all files Collapse all files

7
code/renderergl1/tr_shade.c
View file

@ -219,7 +219,6 @@ R_BindAnimatedImage
*/
static void R_BindAnimatedImage( textureBundle_t *bundle ) {
int64_t index;
double v;
if ( bundle->isVideoMap ) {
ri.CIN_RunCinematic(bundle->videoMapHandle);
@ -234,10 +233,8 @@ static void R_BindAnimatedImage( textureBundle_t *bundle ) {
// it is necessary to do this messy calc to make sure animations line up
// exactly with waveforms of the same frequency
//index = ri.ftol(tess.shaderTime * bundle->imageAnimationSpeed * FUNCTABLE_SIZE);
//index >>= FUNCTABLE_SIZE2;
v = tess.shaderTime * bundle->imageAnimationSpeed;
index = v;
index = tess.shaderTime * bundle->imageAnimationSpeed * FUNCTABLE_SIZE;
index >>= FUNCTABLE_SIZE2;
if ( index < 0 ) {
index = 0; // may happen with shader time offsets