williamjcm/small3dlib
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Update hq offline

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This commit is contained in:
Miloslav Číž 2019-06-16 20:09:41 +02:00
parent d17c534194
commit 4c00cdffe7
2 changed files with 2107 additions and 2014 deletions
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4094
programs/grassTexture.h
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27
programs/hqOffline.c
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@ -66,15 +66,22 @@ S3L_Vec4 toLightDirection;
S3L_Vec4 n0, n1, n2, v0, v1, v2;
void sampleTexture(uint8_t *texture, int w, int h, float x, float y, char color[3])
void sampleTexture(uint8_t *texture, int w, int h, float x, float y, uint8_t color[3])
{
x = fmod(x,1.0);
y = fmod(y,1.0);
int intX = x * w;
if (intX < 0)
intX = w + intX;
int intY = y * h;
int index = S3L_clamp((intY * w + intX) * 3,0,w * h - 1);
if (intY < 0)
intY = h + intY;
int index = S3L_clamp((intY * w + intX) * 3,0,w * h * 3 - 1);
color[0] = texture[index];
color[1] = texture[index + 1];
@ -83,6 +90,8 @@ void sampleTexture(uint8_t *texture, int w, int h, float x, float y, char color[
void drawPixel(S3L_PixelInfo *p)
{
S3L_correctBarycentricCoords(p->barycentric);
S3L_Unit *normals = p->modelIndex == 0 ? terrainNormals : waterNormals;
if (p->triangleIndex != previousTriangle)
@ -217,15 +226,15 @@ color[2] = fresnel2 * 255 + fresnel * 100;
else
{
char textureColor[3];
uint8_t textureColor[3];
sampleTexture(grassTexture,GRASS_TEXTURE_WIDTH,GRASS_TEXTURE_HEIGHT,
position.x / ((float) S3L_FRACTIONS_PER_UNIT),
position.z / ((float) S3L_FRACTIONS_PER_UNIT),textureColor);
position.x / ((float) S3L_FRACTIONS_PER_UNIT * 4),
position.z / ((float) S3L_FRACTIONS_PER_UNIT * 4),textureColor);
color[0] = S3L_clamp(textureColor[0] * light,0,255);
color[1] = S3L_clamp(textureColor[1] * light,0,255);
color[2] = S3L_clamp(textureColor[2] * light,0,255);
color[0] = S3L_clamp(((int16_t) textureColor[0]) * light,0,255);
color[1] = S3L_clamp(((int16_t) textureColor[1]) * light,0,255);
color[2] = S3L_clamp(((int16_t) textureColor[2]) * light,0,255);
}
/*
@ -339,7 +348,7 @@ int main()
char fileName[] = "test00.ppm";
for (int i = 0; i < 20; ++i)
for (int i = 0; i < 40; ++i)
{
animateWater();