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Send depth to triangle draw

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This commit is contained in:
Miloslav Číž 2019-05-08 21:19:55 +02:00
parent 889f68e429
commit 411b24248c
1 changed files with 14 additions and 9 deletions
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23
s3l.h
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@ -115,6 +115,10 @@
#define S3L_RESOLUTION_Y 480 //< Redefine to your screen y resolution. #define S3L_RESOLUTION_Y 480 //< Redefine to your screen y resolution.
#endif #endif
#ifndef S3L_PERSPECTIVE_CORRECTION
#define S3L_PERSPECTIVE_CORRECTION 1
#endif
#define S3L_HALF_RESOLUTION_X (S3L_RESOLUTION_X >> 1) #define S3L_HALF_RESOLUTION_X (S3L_RESOLUTION_X >> 1)
#define S3L_HALF_RESOLUTION_Y (S3L_RESOLUTION_Y >> 1) #define S3L_HALF_RESOLUTION_Y (S3L_RESOLUTION_Y >> 1)
@ -800,9 +804,9 @@ int S3L_bresenhamStep(S3L_BresenhamState *state)
} }
void _S3L_drawFilledTriangle( void _S3L_drawFilledTriangle(
S3L_ScreenCoord x0, S3L_ScreenCoord y0, S3L_ScreenCoord x0, S3L_ScreenCoord y0, S3L_Unit depth0,
S3L_ScreenCoord x1, S3L_ScreenCoord y1, S3L_ScreenCoord x1, S3L_ScreenCoord y1, S3L_Unit depth1,
S3L_ScreenCoord x2, S3L_ScreenCoord y2, S3L_ScreenCoord x2, S3L_ScreenCoord y2, S3L_Unit depth2,
S3L_PixelInfo *p) S3L_PixelInfo *p)
{ {
S3L_ScreenCoord S3L_ScreenCoord
@ -1042,9 +1046,9 @@ void _S3L_drawFilledTriangle(
} }
void S3L_drawTriangle( void S3L_drawTriangle(
S3L_ScreenCoord x0, S3L_ScreenCoord y0, S3L_ScreenCoord x0, S3L_ScreenCoord y0, S3L_Unit depth0,
S3L_ScreenCoord x1, S3L_ScreenCoord y1, S3L_ScreenCoord x1, S3L_ScreenCoord y1, S3L_Unit depth1,
S3L_ScreenCoord x2, S3L_ScreenCoord y2, S3L_ScreenCoord x2, S3L_ScreenCoord y2, S3L_Unit depth2,
S3L_DrawConfig config, S3L_DrawConfig config,
S3L_Index triangleID) S3L_Index triangleID)
{ {
@ -1064,7 +1068,7 @@ void S3L_drawTriangle(
if (config.mode == S3L_MODE_TRIANGLES) // triangle mode if (config.mode == S3L_MODE_TRIANGLES) // triangle mode
{ {
_S3L_drawFilledTriangle(x0,y0,x1,y1,x2,y2,&p); _S3L_drawFilledTriangle(x0,y0,depth0,x1,y1,depth1,x2,y2,depth2,&p);
} }
else if (config.mode == S3L_MODE_LINES) // line mode else if (config.mode == S3L_MODE_LINES) // line mode
{ {
@ -1186,7 +1190,7 @@ void S3L_drawModelIndexed(
S3L_Index triangleIndex = 0; S3L_Index triangleIndex = 0;
S3L_Index coordIndex = 0; S3L_Index coordIndex = 0;
S3L_ScreenCoord sX0, sY0, sX1, sY1, sX2, sY2; S3L_ScreenCoord sX0, sY0, sX1, sY1, sX2, sY2, d0, d1, d2;
S3L_Vec4 pointModel; S3L_Vec4 pointModel;
S3L_Unit indexIndex; S3L_Unit indexIndex;
@ -1209,13 +1213,14 @@ void S3L_drawModelIndexed(
pointModel.z = coords[indexIndex];\ pointModel.z = coords[indexIndex];\
++coordIndex;\ ++coordIndex;\
S3L_vec4Xmat4(&pointModel,&mat1);\ S3L_vec4Xmat4(&pointModel,&mat1);\
d##n = pointModel.z;\
S3L_mapCameraToScreen(pointModel,&camera,&sX##n,&sY##n); S3L_mapCameraToScreen(pointModel,&camera,&sX##n,&sY##n);
mapCoords(0) mapCoords(0)
mapCoords(1) mapCoords(1)
mapCoords(2) mapCoords(2)
S3L_drawTriangle(sX0,sY0,sX1,sY1,sX2,sY2,config,triangleIndex); S3L_drawTriangle(sX0,sY0,d0,sX1,sY1,d1,sX2,sY2,d2,config,triangleIndex);
++triangleIndex; ++triangleIndex;
} }