Add support for float arrays in shaders

1 files changed, 8 insertions, 3 deletions

diff --git a/src/webgl.zig b/src/webgl.zig
index c4b7af8..934ae3c 100644
--- a/src/webgl.zig
+++ b/src/webgl.zig
@@ -7,7 +7,7 @@ const Mat4 = matrix.Matrix(f32, 4, 4);
 
 const Color = engine.Color;
 
-const ShaderType = enum { vec2, vec3 };
+const ShaderType = enum { f32, vec2, vec3 };
 
 const UniformInfo = struct {
     identifier: [:0]const u8,
@@ -30,7 +30,7 @@ const UniformInfo = struct {
 const AttributeInfo = struct {
     identifier: [:0]const u8,
     shader_name: []const u8,
-    kind: enum { vec2, vec3, vec4 },
+    kind: enum { f32, vec2, vec3, vec4 },
     instance_divisor: ?u16 = null,
 };
 
@@ -48,6 +48,7 @@ pub const Buffer = struct {
 
     fn FillDataType(comptime shader_type: ShaderType) type {
         return switch (shader_type) {
+            .f32 => []const f32,
             .vec2 => []const [2]f32,
             .vec3 => []const [3]f32,
         };
@@ -62,6 +63,9 @@ pub const Buffer = struct {
     ) void {
         bindings.bindBuffer(target, self.handle);
         switch (kind) {
+            .f32 => {
+                bindings.bufferData(target, @ptrCast(vals.ptr), vals.len, usage_pattern);
+            },
             .vec2 => {
                 bindings.bufferData(target, @ptrCast(vals.ptr), vals.len * 2, usage_pattern);
             },
@@ -201,11 +205,12 @@ pub fn Program(
             bindings.enableVertexAttribArray(attr_handle);
 
             const size = switch (attr_info.kind) {
+                .f32 => 1,
                 .vec2 => 2,
                 .vec3, .vec4 => 3,
             };
             const a_type = switch (attr_info.kind) {
-                .vec2, .vec3, .vec4 => .f32,
+                .f32, .vec2, .vec3, .vec4 => .f32,
             };
             const normalize = .false;
             const stride = 0;